Signal Detector

Contains ads
3.8
8.3K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Learn more
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About this app

Monitor cellular (5G/4G), WiFi, Bluetooth, GPS, and magnetic field signals. Help locate quality signal sources and diagnose network issues.

Phone | Cell Tower | WiFi | Bluetooth | Satellite | Magnetic | Speed | Noise

怐Core Features怑

1. Mobile Network Monitoring
Supports GSM/CDMA/WCDMA/LTE/5G NR standards with real-time signal strength, base station info, carriers, and roaming status.
• Dynamic trend charts for signal changes
• IP, gateway, and DNS overview
• Neighboring cell distribution mapping

2. WiFi Signal Analysis
Monitor signal strength, frequency bands, and bandwidth. Display MAC, channel, and speed. Scan LAN devices and detect DNS hijacking, ARP spoofing, and SSL anomalies.
• Assisted ranging
• Webpage tampering detection
• Freeloader detection and hidden device discovery
• Visual route tracing

3. GPS Location Tracking
Supports BeiDou, GPS, GLONASS, Galileo, QZSS, and IRNSS. Display satellite count, SNR, coordinates, altitude, and speed.
• Polar coordinate visualization
• 3D confidence assessment

4. Bluetooth Device Management
Scan and classify nearby devices (headphones, wearables, car devices). Measure distance and location to help find lost devices. Supports paired list and nearby discovery.

5. Sensor Monitoring
Collect magnetic, temperature, humidity, pressure, and light data. Use as compass, thermometer, barometer, and more.
• Digital compass
• Magnetic field threshold alerts
• Multiple sensor access

6. Environmental Noise Detection
Measure decibel levels in real-time with dynamic curve recording and historical data review.

7. Network Diagnostics
IPv4/IPv6 PING tests measure latency, jitter, and packet loss.
• Success rate + latency rating
• Custom DNS and website testing
• Detailed log recording

8. Speed & Device Status
Display movement speed (km/h, mph, knots), direction, and satellite count. View CPU frequency, architecture, temperature, battery level, health, and charging status.
• Real-time speed display for navigation reference
• Battery health analysis

怐Use Cases怑
• Find strong signal spots and reduce dead zones
• Detect network risks and identify ARP/DNS anomalies
• Assist navigation and manage Bluetooth devices
• Locate lost Bluetooth earbuds, wearables, and nearby devices
• Monitor noise levels in living/working environments
• Troubleshoot connectivity issues quickly


Transform complex network technologies into intuitive visual information!
Updated on
Jun 23, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

3.8
8.14K reviews
Richard Champalbert
April 27, 2024
This app works great! I use it to find my Bluetooth earbuds. With the continuous tracking, I can wander around, watching the signal strength change and zero in on the tiny earbud. Pro tip: if the signal does NOT change, it's probably ON you! It does a bunch of other things, but I don't use those. It's worth it, just for the earbud finder.
660 people found this review helpful
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David walsh
January 13, 2024
Great app once you get the hang of it. A bit technical but gives real helpful information I'd either your wifi or mobile phone is having signal problems. You Really have to play with it at first. Don't be afraid to push any screen hyperlinks, your device won't explode. The best app for wifi and mobile signal information. Tower location, signal strength and speed, technical advice on security and other features. Like I said don't be afraid to push on. Anything that's how you get the hang of it.
530 people found this review helpful
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Jim Harris
October 19, 2023
Interest app but: (1) digital sensor readings are too rapid to be useful. Suggestion: allow the user to select the update rate and average the signals over that interval. (2) Cellular signal strength data is virtually useless as the provider names are not provided. (*WHICH* of these providers is giving the best signal?) (3) There should be something somewhere that describes the units and values for people who aren't signal engineers. (4) WiFi SSID information is missing in many cases.
367 people found this review helpful
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What’s new

1. Optimized application performance;
2. Compass adapted for landscape mode;
3. Fixed other known issues.
Content rating
Everyone
Learn more

App support

Phone number
+15199558552
About the developer
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lefan2023@126.com
中国 ę²³å—ēœå¼€å°åø‚ é¼Žē«‹å›½é™…F区7å·ę„¼1201 邮政编码: 475000
+86 131 8326 6505

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